Means for feeding goods into and removing goods from annealing and other furnaces



M. V'AN MARLE.

MEANS FOR FEEDING GOODS INTO AND REMOVING GOODS FROM ANNEALING AND'OTHER FURNACES..

APPLICATION FILED .IULY-8, 1920;. I Patented Jan. 3, 1922,

4 SHEETS-SHEET I.

7 M VAN MARLE. v IVIEANS FOR FEEDING GOODS INTO AND REMOVING GOODS FROM ANNEALING AND OTHER FURNACES. APPLICATION FILED JULY 8,1920- Patented Jan. 3, 1922.

4 SHEETS-SHEET'Z.

. V ax M. VAN MARLE.

REMOVING GOODS FROM ANNEALING AND OTHER FURNACES.

APPLICATION FILED JULY 8, I920.

MEANS FOR FEEDING GOODS INTO AND 1,402,551, Patnted Jan. 3,1922.

(SHEETS-SHEE 3 IIZ II M. VAN MARLE.

MEANS FOR FEEDING GOODS INTO AND REMOVING GOODS FROM ANNEALING AND OTHER. FURNACES APPLICATION FILED JULY 8, I920- 1,402,551.

Patented Jan. 3, 1922.

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PATENT oFFi-cs.

MARTIN VAN MARLE, O-F LOWER.GORNAL, ENGLAND.

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Be it known that MARTIN VAN. MARLE, a subject of His Majesty the King of Great Britain and Ireland, residing at Dib clale lVorks, Lower Gornal, in'the county of Stafford, England, has invented new and useful Improvements in or Connected with Means for Feeding Goods into and Removing Goods from Annealingv and other Furnaces, (for which he has obtained a patent in Great Britain, No. 116,949, dated February 19, 1919,) of which the following is a specification.

This invention comprises improvements in or connected with means for feeding metal goods or other goods into annealing and other furnaces and for removing such goods from said furnaces. invention is of that type which comprises a goods carrying carriage adapted for longitudinal i'no'vement and arranged so as to carry the: goods bodily into the furnace and to lower and deposit them on to the furnace bottom or on to rails or supports thereon and then to return out of the furnace, said goods carriage being carried by a traveller adapt-ed to travel along rails or the like outside the front of a-furnaoe or a battery of furnaces so that the same feeding and charging. device will serve for any of the furnaces. The goods'carriageis so arranged that it can also be used for removing goods from the furnace as in this casev said goods carriage is caused to travel longitudinally into the furnace under the goods and then to rise and lift thegoods bodily off the furnace floor or supports and to travel backwardly with the goods out of the furnace.

According to this dnvention the goods carriage which is adapted for longitudinal movement along rails of a frame fixed to the traveller, and also along rails on the furna-ce bottom is furnished with longitudinal goods carrying bars combined with means for raising and lowering such bars on the carriage, the arrangement being such that the goods carriage with its longitudinal bars and the goods thereon in the raised position can be moved longitudinally into'the'fu-rnacc and then the longitudinal bars of the carriage are lowered on the carriage clear of the goods and the goods carriage is'then OTHER romances.

' S pecification'of Letters Patent. Patented J 3, 19.22. I Application filed my s, 1920; Serial no. 394L781.

travelled backwardly out of the furnace.

Similarly. when removing furnace the goods carriage with its longitudinal bars intheir lowest position is propelled alongthe rails of the frame into the furnace and along the rails of the same under the "goods therein and then the longitudinal bars of the carriage are raised so as to lift the goods bodily off the bottom of the furnace, or offthesupport's on which goods from the i the goods were resting, and then the goods I carriage with the goods is moved: back out of the furnace and the traveller is travelled along to the place where the goods are to be deposited. I i 1 i The preferred arrangement of carrying out this invention isill'ustrated by the accoinpanying drawings of which Fig. 1 is a part sectional side elevation on I the arrangement shown in Fig. 1 with part of the furnace in section,

Fig. 3 is-a. longitudinal sectional elevation of part of the goods carriage and illustrat ing a slight modification of this invention;

Fig. e is a crosssectional' elevationof the traveller and goods carriage Figs. 1 and 2 taken on the line ZZ of Figs. land 2;

Fig. 5 is a cross sectional elevation showing parts of the traveller and goods carriage and one of the levelling screws for the latter; e r i F g. 6 is a plan of the same V Fig. 7 is an; endelevationonia larger scale than Figures 1 and 2v of rather more than one half of the goods carriage;

Fig. 8 is a longitud'nal sectional elevation of portions of the goods carriage'taken on line ZZof Fig. 7", 'c 4 Fig, 9 is a plan of the same Fig. 10 isalso a longitudinalsecti'onal elevation of a portion of the goods carriage but showing one Of ti t carrying bars in their raised position whereas in Figs. 8 and 9 the carrier bar is shown in its lowest position;

Fig. 11 is a cross sectional elevation of the same taken on line W WV of Fig. 10;

Fig. 12 is also a cross sectional elevation of the sametaken on lineV V of Fig. 10

Fig. 13 is a cross sectional view of the furnace showing the rails along which the goods carriage runs;

Fig. 14 vis also a cross sectional elevation of the furnace showing a modified arrangement of the rails on thefurnace bottom.

A is the traveller adapted to travel along the rails B which are laid parallel with a battery of annealing or other furnaces of which a portion of one furnace is shown in Figs. 1 and 2 and is marked C, the cross sectional shape of the floor 14: of thefurnace and the rails being shown separately in Fig. 13. I

D is the goods carriage which is arranged to travel to and fro along the horizontal cross rails or girders 20f the traveller A and is adapted to also travel-along the rails 15 in the furnace C to deposit the goods in the furnace as aforesaid or to pick them up and carry them out of the furnace. The traveller A comprises two pairs of parallel girders marked 1 fixed at a short distance apart side a by side and at their ends fitted with axle bearings 6 for the axles 3 of the flanged wheels 1 which are adapted to travel along the floor rails B outside the Fixed crosswise on the girders 1 is theframe along whichthe goods carriage D travels. This frame is preferably formed of two horizontal angle section bars 5 which. are laid on the top of the channel bars 1 and are riveted thereto so as to fix them at the correct distance apart, and fixed to the sides of the vertical flanges 7 of these two angle section bars 5 there are two channel section horizontal girders 2 which in their lowest positionrest on the girders 1 of the traveller and are bolted to the vertical side flanges j? of the angle section bars 5 by bolts '18 in slotted holes 9 of the girders 2so as to permit of these girders 2 being set up or down slightly, that is at parts where they cross the girders 1 of the traveller so that the girders 2 forming the rails as aforesaid can be set exactly level. This'is preferably accom plished by each of the girders 2 being provided with two vertical leve1lingscrewsf16 shown in detail in Figs. 5, and 6, the heads lower side bars 18.

furnace.

channel girders 1, and thus the rails 2 can be set exactly'level and rigidly secured in that position by tightening up the nuts on the bolts 8 which secure them to the angle section bars 7. w

The goods carriage D is preferably made of about the same length as is the furnace 'C with which it is to be used. The said goods carriage comprises two inverted channel shaped longitudinal bottom side bars 18 arranged parallel with one another and fixed at the proper distance apart'as hereinafter described, and mounted on axles- 19 of y ries the gearing as hereinafter described for raising and lowering the longitudinally disposed goods carrying bars 23 which are arranged parallel with and on the top of the Any suitable mechanism may be employed for raising and lowering the goods carrying bars 23 from the lower side bars 18 such for instance as the arrangement of toggle links 24 which are situated within the channel side bars 18 and the inverted. channel carrying bars 23 and fit between the sides of the same,'the lower ends 25 of the toggles 25% being jointed as by engaging in notches in the bottoms of the channel bars 18 of the carriage, and the upper ends 26 of the toggles are jointed to the carrying bars 23 by engagin in notches formed therein as shown in Figs. 8 and 10.

wheels 20 which'are adapted to travel along" necting links 27- 'to side pins 32 of nuts Y 7 28. working on horizontal screws 29 mounted in bearings 30, 31 fixed on the bottom bars 18. In their normal positions the toggle links 24; are inclined towards the front of the carriage as in Figure 8 and their flat parts'l'O rest on the bottomof the channelside bars 18 on the top of which the sides of the carrying bars 23 then rest as in Fig. 8. To raise the carrying bars 23 the screws 29 have to be turned in the direction 7 to travel the nuts 28 backwardly along the screws 29 and this longitudinal backward movement is transmitted through the links 3 27 to the carrying bars 23 which thus cause the toggle links 24 to turn on their jointed lower and upper ends and to raise the carrying bars 23 until the toggle links 2&- occupy vertical positions as, inFigs. 10, 11, 12, where they are maintained by the nuts 28 on the screws 29 and by the stop ends 33of the tog les 24c resting on the bottom of the charms s ofthe side bars 18. Then when it is desired to lower the carrying bars opposite direction so as. to move the nuts bearings 41 of the tie bracket 22' through 28 with" the side pins 32. and connecting links 27 andthe carrying,- bars 23 forwardly andturn the toggle links from the positions shown inFig. 10 tothe lowest positions shown in Fig. 8 when the carrying bars 23 will rest upon thelowerside bars 18. Each of these lower side bars 18 of the carriage is preferably formed oftwo fiat Section side bars (see Figs. 11 and12) which form the sides of thetrough and these are riveted as by rivets 34 (Fig. 10) to intermediate fiat section bars forming the bot-' tom of the trough and arranged atxintervals apart to form gaps for therollers of the carriage which are arranged in the trough between the sides of the same and are there securedbyaxle pins 19 which pass through the rollers 20 the lower portionsof which latterproject through the gaps in the bottom of the trough, to run along the tops of the side girders 2 of thecross frame,

The rising and falling inverted trough sec- 'tion goods carrying bars 23 are preferably also similarly formed of two flat section side barsfixed at the same distance apart as are the side bars of the lower trough section barslS and similarly fixed as by rivets to an intermediate flat section bar forming, the top of the trough see Figs. 10, 11, 12. Fixed on the outer part of each of the screws 29 there is a spur wheel 36 which through intermediate idle spur wheels. 37, 38, is driven by a spur pinion 39, the boss 40 of whichis mounted to turn in horizontal bosses 42 of which pass the stationary axle pins 43, 44, of the spur wheels37, 38. This bracket 22. is preferably made in halvesas shown, the division being at 69 (Fig. 8)

'. otherwise fixed.

square shaft 46 there is a hand wheel 47 i bracket.

in planepa'rallel to the-plane of the wheels so as to enable said wheels to be readily got into position between the halves. of the The driving spur pinion 39 is made with a square hole so as to slide easily along the square shaft 46 whichpasses through this pinion and runs longitudinally from end to end of the carriage along'the center of the same and at its end is mounted to turn in bearings'71,'48, of brackets fixed onthe cross end girders 49, 50, arranged immediately underneath the longitudinal side girders 2 of the carriage D and to which these side girders are riveted or On the back end of the for turning the same to. turn the screws 29 and operate the-rising and falling sidebars of the goods carriage D as aforesaid.- The travelling of the goods carriage D along the side girders 2 of. the frame is preferably effected by means of two endless chains 52,

53,.whichare connectedto the cross bracket 2210f the carriage and passaroundthe-driving. toothed chain wheels ,54Iwhich mounted on the horizontal crossshaft at the back end of the frame. Said chains 52, 53, are arranged parallel with one an other and parallel-with the side girders 2 of thecross frame and-at the front end of the framepass over guide rollers 56, 57,

and back to the underside "of the toothed chain wheels 54.. Means such as the, hand wheel 56 are provided on the shaft for turning the same so asthereby to move the 1 goods carriage D along the side girdersu2 in the one or the other direction. The outer I end of the shaft 55 is carried in a bearing 57 of a bracket 58 fixed on the extension of the cross girder '50- (see 2); There I are two, guide pulleys 59 arrangedunderneath the chainsv 52, 53,.and carried by leys 54. and two: guide pulleys 62 arranged abovethe. lower portions of the chains and carried by bearings63 from one of the cross girders, 1, (see Figs; 1 and2). 4

When the furnace is.- constructed for the goods to'be delivered on to the floor of the furnace then in said floor there must be built two vertical parallel channels such as 64 (Fig. 13) running from the front to the back of the furnace with rails 15 at, the bottom of the channels which are arranged, at theproper distance apart to accommodate the side bars of the carriage D. Or when applying our invention to 'an existing an nealing furnace,then,, o. as to avoid interfering with the floor of such furnace, the rails in the furnace along. which the rollers 20 of the goods carriage travel can bean rangedon the furnace floor as shown in Fig. 14; where said rails'are marked65 and they are made all along'with upstanding side plates66carried to the proper height to receive the goods, such as the bars or tubes 63, from the carriage a aforesaid. The side plates 66 of the railsmust "bearranged, at, the proper distance apart to; allow theside bars 18, '23; of the carriage D to enter between them.

In operation the short bars, tubes or other goods'to be passed intothe furnace C are placed crosswiseion therising and falling carrying bar 23' of the carriage D (or'if the goods are too small to'be soplaced then they are placed. on cross bearers on the said carrying bars 23) and the carrying bars 23 are then raised as aforesaid by. turning the goods carriage D with the goods forward,

l of the goods carriage will be clear of the that is towards the right hand in Figs. '1 and 2 into the furnace. 'When' the carriage D with the' goods thereon hasbeen travelled into the furnace and. along the rails 15 of the same and arrives at the end of its journey the screws 29 are by the hand wheel-47 turned in the opposite direction so as to travel the nuts 28 forward andto lower the goods'travelling bars 23 on to the bars 18 of the carriage and now they willbe clear of the goods (say the bars 63 indicated bythe dotted lines in "Fig,13)' which will be left on the floor of the furnace and the goods carrying carriage D will then by turning the hand wheel 56 be moved back out of the furnace. Similarly when removing the goods (such as the bars 63 Fig. 13 from the furnace, .the goods carriage D with the goods carrying bars in their lowest position is by turning the hand wheel 56 moved forward along the side girders 2 and into the furnace underneath the bars or tubes 63 or other goods and then by turning the hand wheel 4:7 and screws 29 the carrying bars 23 are raised underneath the bars or tubes 63 or other goods which have been annealed and which are now lifted by and with the carrying bars 23 up above the floor l t and can now be withdrawn with the carriage D out of the furnace and the traveller A with the goods carriage D thereon and the goods carried thereby can he travelled along the rails B'outs'ide the furnace to any desired destination.

In Figs. land 2 the goods carriageD i shown as partly entering the-furnace C but it will be understood that when withdrawn to its full backward position, vthatis towards the left hand in Figs. land 2,the front end furnace.

Alternative means for raising and lowering the goods carrying bars ,23 of the ear riage D may conveniently consist of two series of pairs of inclined wedge like blocks see Fig. 3 one series of these blocks 67 being fixed to the bottom of the lower channel bars 18 and the inclined blocks .68 forming the upper series being fixed in the inverted channel bars'23 so as to rest upon theinclined blocks 67. These inclined wedgelike blocks are arranged between the rollers 20 of the carriage D and it will. be seen that they have the effect of causing the goods carrying bars 23 to be lowered by the screws 29 when said screws are turned in 'one direction and the-goods carrying .bars will be raised when said screws are turned in the opposite direction. 7 I

The accompanying drawings illustrate what I consider to be the-best way of car rying'my invention into practi e, but it {is to be understood that my invention is not limited to the precise details shown as'these may be varied to some extent without dea parting from the nature of my invention.

What I cla m my invention and desire to secure by Letters Patent 1s:-' r

Lfipparatus for charging or discharg ing furnaces comprising, a traveller adapted to move transversely, across frame car ried by said traveller having rails, a goods carrying carriage mounted 'on said cross frame and adapted to move 'on said rails, lon ltudinall dis Josed noods-carr m bars 0 o y o 'movably mounted above said carriage and adapted to carry the goods into or remove them from the furnace, means for raising. and lowering said bars on sald goods carriage, and means for moving said carriage longitudinally to carry the goods bodily into the furnace. n

2. Apparatus for charging or discharging furnaces comprising a goods-carrying v carriage, a traveller adaptedito move the carriage transversely, a cross frame carried by said traveller having rails for the carriage, longitudinally disposed goods carrying bars on said carriage adapt-a ed to carry'the goods into or remove them goods from the furnace, means for raising and lowering said bars'on' said goods carriage, and means carried by said cross frame adapted to move said goods carriage'along the rails on the cross frameto carry. the goods bodily into the furnace.

3. Apparatus forcharging or discharging furnaces comprising a goods-carrying car riage, means for. travelling said carriage transversely, longitudinally disposed goodscarring bars on said carriage adapted to carry the goods into or remove them from the furnace, means for moving said bars longitudinally relative to said carriage, means for supporting the bars so that such relative movement seves to raise or lower the bars, and means for moving said carriage longitudinally to carry the goods bodily into the furnace. y 7

4. Apparatus for charging or discharglng furnaces comprising a goods-carrying carriage, a traveller adapted to move the carriage transversely, a cross frame carried by said *travellerhaving rails for the goods carriage, longitudinally disposed carryingbars on said carriage adapted to carry the goods into or remove'them from the furnace, means for moving said bars longitudinally relative to said carriage, means for supporting the bars so that such relativejmovement serves toraise or lower the bars, and means carried by said cross frame adapted to'move said goodscarriage goods along therail's on the cross frame to carry furnaces comprising a goods-carrying carriage, means for travelling said carriage transversely, longitudinally disposed goodscarrying bars onsaid carriage adaptedto carry the goods into orremove them from the furnace. means for moving saidbars longitudinally relative to said carriage, a

plurality of supporting members pivot-ally associated with the carriage and with the bars whereby the relative movement serves to raise or lower the bars, and means for 7 moving said carriage longitudinally to carry the goods bodily into the furnace.

6. Apparatus for charging or discharging furnaces comprising a goods-carrying carriage, a traveller adapted to movethe carriage transversely, a cross frame carried by said traveller having rails for the goods carriage, longitudinally disposed goodscarrying bars on said carriage adaptedto carry thegoods into or remove them from the furnace, means for moving said bars longitudinally relative to said carriage, a

plurality of supporting members pivotally associated with the carriage and with the bars whereby the relative movement serves to raise or lower the bars, and means car-v ried by said cross frame adapted to move said goods carriage along the rails on the cross frame to carry the goods bodily into the furnace.

7 Apparatus for charging or discharging furnaces comprising a goods-carrying carriage, means for travelling said carriage transversely, means for adjusting the height of said goods carriage, longitudinally disposed goods-carrying bars on said carriage adapted to carry the goods into or remove them from the furnace, means for raising and lowering said bars on said goods .car-

riage, and means for moving saidcarriage carrying bars on said carriage adapted to carrythe goods into or remove them from the furnace, means for, moving said bars j lon 'itudinall' relative to, said carria e b y i b 7 means for supporting the bars'so that such relative movement serves to raise or lower the bars, and meanscarried by said cross frame adapted to move said goods carriage along the rails on the cross frame to carry the goods bodily into thefurnace.

9. Apparatus for charging or discharging furnaces comprising a goods-carrying carriage, a traveller adapted to move the can riage transversely, a cross frame carried by said traveller having rails for the goods carriage, levelling screws adapted to adjust the height of the said rails and thereby raise or lower the goods carriage, nuts for operating said screws, longitudinally disposed goods-carrylng bars on sald carnage adaptfrom the furnace, means for moving said bars longitudinally relative to said carr age, means for supporting the bars so that such relative movement serves to raise or lower the bars, and means carried by said cross frame adapted to move said goods carriage along the rails on the cross frame to carry the goods bodily into the furnace. I

10. Apparatus for chargingior discharging furnaces comprising a goods-carrying carriage, a traveller adapted to move the carriage transversely, a cross frame carried by said traveller having rails for the goods carriage, levelling screws adapted to adjust the height of the said rails and thereby raise or lowerthe goods carriage, nuts for operating said screws, longitudinally dis-,

posed goods-carrying bars on said carriage adapted to carry the goods" intoor remove them from the furnace, means formovlng said bars longitudinally relat ve tosald car:

ed to carry. the goods into or remove them ria 'e a luralit of su 'ortin members D 7 b pivotally associated with the carriage and with the bars whereby the relative movement serves to raise or lower the bars, and means carried by said cross frame adapted to move said goods carriage along the rails on the cross frame to carry the goods bodily into the furnace. r

In testimony whereof I have signed my name to this specification.

ARTIN VAN, MARLEK 

